红帽全球峰会1.3. Options for integrating with AD: using POSIX ID mapping or POSIX attributes
Linux and Windows systems use different identifiers for users and groups:
- Linux uses user IDs (UID) and group IDs (GID). See Introduction to managing user and group accounts. Linux UIDs and GIDs are compliant with the POSIX standard.
- Windows use security IDs (SID).
重要
After connecting a RHEL system to AD, you can authenticate with your AD username and password. Do not create a Linux user with the same name as a Windows user, as duplicate names might cause a conflict and interrupt the authentication process.
To authenticate to a RHEL system as an AD user, you must have a UID and GID assigned. SSSD provides the option to integrate with AD either using POSIX ID mapping or POSIX attributes in AD. The default is to use POSIX ID mapping.
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